In my business, I am very often not allowed to use public clouds because of data privacy reasons. This means, I need to create my own cloud with all the services that are needed to actually work in a IT driven DevOps environment.
Is there a comprehensive list of software, which offer on-prem solutions? It does not have to be open-source or free.
A good example would be some Atlassian software, like Jira, which is available as on-prem version.
Nextcloud and OpenStack if you are looking to run your own cloud like deployments
can recommend Nextcloud, we have used it as we cant move PID outside of the UK. Also there is a Nextcloud all in one setup that will get you a fully working Files/Office/whiteboard suite